What three documents nee to be checked and prepared before an invoice can be processed for payment in accounts payable?

Before an invoice can be processed for payment in Accounts Payable, it is essential to check and prepare the purchase order (PO) to confirm that the goods or services were authorized, the receiving report to verify that the items were received in satisfactory condition, and the invoice itself to ensure it matches the details of the PO and receiving report. This three-way match helps prevent errors and fraud, ensuring that payments are made accurately and only for received items.